Allele Dmel\sggM11
| General Information | |||
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| Symbol | Dmel\sggM11 | Species | D. melanogaster |
| Name | FlyBase ID | FBal0032709 | |
| Feature type | allele | Created / Updated | 2006-08-22/2006-08-22 |
| Associated gene | Dmel\sgg | ||
| Allele class | amorph, loss of function | ||
| Mutagen | spontaneous | ||
Nature of the Allele
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| Allele class | |||
| Mutagen | |||
| Mapped Features and Mutations | |||
Type Symbol & Location Additional Notes References | |||
| Associated Sequence Data | |||
| DDBJ
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EMBL / GenBank | DNA sequence Protein sequence Name | ||
| UniProtKB/Swiss-Prot | |||
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| Progenitor genotype | |||
| Nature of the lesion | Statement Reference | ||
| Assay mode | |||
| Cytology | |||
Phenotypic Data
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Phenotypic Class
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Phenotype Manifest In
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macrochaeta & wing larval brain & embryo | germ-line clone | maternal effect | |||
Detailed Description
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Statement Reference Mutant clones generated via Scer\GAL4en-e16E and Scer\FLP1Scer\UAS.cDa acting on P{FRT(whs)}101 show ectopic bristles limited to the posterior compartment. Mutant embryos show abnormal guts. Hemizygous progeny derived from heterozygous females die during early larval stages. All embryos derived from homozygous germline clones die during embryonic development, and have very poorly differentiated cuticle which sometimes has holes in it. The head is defective, with abnormal spiracles, and the filzkorper material is very prominent. The CNS is very disorganised and the brain often protrudes dorsally rather than being covered by epidermis. The PNS is abnormal. Some embryos have a less extreme phenotype, with more cuticle differentiation and some defective denticle belt differentiation. The phenotype can be partially rescued by a paternal copy of wild-type sgg. Homozygous clones in the wing show homeotic transformation of hairs into bristles. Mutants embryos lacking both maternal and zygotic gene product completely lack ventral denticles: en expression is expanded and there is a strong ectopic wg stripe of expression. Embryos lacking only maternal component have some ventral denticles: en expression is identical to that in the "null" embryos but the ectopic wg stripes are sparse. Homozygous clones in the wing generally contain dense aggregations of bristles, the type of bristle depending on the location of the clone. The spacing of the normal campaniform sensilla is disrupted if the clone is near the normal location of the sensilla. Ectopic veins are sometimes formed. Embryos lacking both maternal and zygotic sgg and arm function have an embryonic cuticle phenotype like that of arm mutant embryos alone. Embryos lacking maternal sgg and arm but receiving wild type paternal copies develop into normal embryos that survive until adulthood. Embryos lacking maternal sgg and arm but receiving a wild type paternal copy of arm+ only, show a sgg naked cuticle phenotype. Embryos derived from homozygous mutant germ lines, receiving neither maternal or zygotic wild type product, lack denticles on the ventral cuticle. Clones induced during the late second larval instar give rise to fully ventralized dorsal bristles in both anterior and posterior compartments. More than wild type numbers of invagination folds in the stomodeal invagination are observed. Clones double mutant for sggM11 and Df(3R)Espl22 in the anterior wing differentiate anterior bristles (as for clones of sggM11 single mutants), however double mutant clones in the posterior compartment differentiate hairs typical of the posterior wing margin. Virtually all ventral denticle belts of the embryo are replaced with naked cuticle. In paternally rescued embryos the gut constrictions are highly abnormal, all three are condensed and folded up into one giant constriction. Malpighian tubule growth is precociously initiated. Homozygous embryos also exhibit precocious development, but are severely misshapen so morphological analysis is difficult. Embryos show severe segmentation defects but no increase (but rather a moderate decrease) in heart precursor formation. No effect on the faf eye phenotype. Homozygous clones induced in the eye produce scars. Outside the scarred area, ommatidial chirality is inverted on the polar side of the clone. This phenotype is unchanged if the clone is also homozygous for wgl-17. Females with homozygous germ line clones, mated to wild-type males, give rise to 2 classes of embryos: null sggM11/Y embryos (lacking both maternal and zygotic sgg function) which have a completely naked cuticle and paternally rescued sggM11/+ embryos (lacking maternal sgg function) which have sparse denticles. These phenotypes are rescued to an almost wild-type denticle pattern by sggScer\UAS.cSa expressed under the control of Scer\GAL469B. Embryos do not form ventral denticles. slou-expressing muscles are often absent in embryos derived from homozygous germline clones. In embryos derived from germ line clones, the anterior midgut construction is obliterated. Phenotype is similar to that caused by Apc2 RNAi mutants. Homozygous clones in the wing show transformations of wing blade to wing margin tissue. Mutant stage 17 embryos do not show significant defects in the location or formation of the tracheal dorsal trunk branch, dorsal branch 10, spiracular branch 10 or the posterior spiracle. No denticle are present in the cuticles made by embryos maternally and zygotically mutant for sggM11. | |||
Interactions
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Phenotypic Class
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Enhancer of | |||
Statement Reference | |||
NOT Enhancer of | |||
Statement Reference | |||
Suppressor of | |||
Statement Reference | |||
NOT Suppressor of | |||
Statement Reference sggM11 is a non-suppressor of lethal | larval stage | segment polarity | germ-line clone phenotype of lgs20F | |||
Phenotype Manifest In
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Suppressed by | |||
Statement Reference sggM11 has denticle belt | rescuable maternal effect | germ-line clone phenotype, suppressible | rescuable maternal effect by arm8 sggM11 has embryonic/first instar larval cuticle | rescuable maternal effect | germ-line clone phenotype, suppressible | partially | rescuable maternal effect by arm8 sggM11 has embryonic/first instar larval cuticle | rescuable maternal effect | germ-line clone phenotype, suppressible | partially | rescuable maternal effect by armF1α sggM11 has denticle belt | rescuable maternal effect | germ-line clone phenotype, suppressible | rescuable maternal effect by armF1α | |||
NOT suppressed by | |||
Statement Reference | |||
Enhancer of | |||
Statement Reference sggM11/sgg[+] is an enhancer of wing sensillum | ectopic phenotype of Scer\GAL4en-e16E, armScer\UAS.cWa | |||
NOT Enhancer of | |||
Statement Reference | |||
Suppressor of | |||
Statement Reference sggM11/sgg[+] is a suppressor of scutum & macrochaeta phenotype of Scer\GAL4ap-md544, nmoc5-1.Scer\UAS sggM11 is a suppressor | germ-line clone | maternal effect | partially of embryonic leading edge cell | maternal effect | germ-line clone phenotype of dsh3 sggM11 is a suppressor | germ-line clone | maternal effect | partially of embryonic/first instar larval cuticle | maternal effect | germ-line clone phenotype of dsh3 sggM11 is a suppressor | somatic clone of macrochaeta phenotype of NECNΔ10-12.Scer\UAS, Scer\GAL4ptc-559.1 sggM11 is a suppressor | somatic clone of proneural cluster & dorsal mesothoracic disc phenotype of NECNΔ10-12.Scer\UAS, Scer\GAL4ptc-559.1 | |||
NOT Suppressor of | |||
Statement Reference | |||
Other | |||
Statement Reference | |||
Additional Comments
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Genetic Interactions
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Statement Reference Suppresses wing margin phenotype of fzScer\UAS.N, Scer\GAL469B. The sggM11 lack of denticles phenotype is not affected by injection of both dsRNA produced by annealing fz374-2360 and fza.374-2360 RNA and dsRNA produced by annealing fz2L.cKa and fz2a.L.cKa RNA. Has no effect on the wing nicking phenotype seen in mamN.Scer\UAS, Scer\GAL4C96 flies. sggM11 somatic clones, in a NECNΔ10-12.Scer\UAS/Scer\GAL4ptc-559.1 background, suppress the loss of proneural precursors and sensory organ phenotypes normally seen in these flies. lgs20F, sggM11 homozygous mutant germ-line clones can made by rescuing homozygous mothers with P{αTub84B(FRT.lgs.sgg)Scer\GAL4.B} and FLPing out sggmR10 and lgsαTub84B.PK (Which are surrounded by FRT sites). When this is done, the phenotype of the animals is indistinguishable from lgs20F germ-line clones. The loss of denticle belts in the cuticle made by sggM11/sggM11 maternal/zygotic mutant embryos, is suppressed by maternal/zygotic armF1α/armF1α (a weaker suppression is seen when arm8 is used instead). When these double mutant embryos are also zygotically mutant for wgl-8, they make little naked cuticle, a phenotype approximating to that seen in wgl-8 mutants. The appearance of the denticle lawn in these embryos is noticeably different to that seen in maternal/zygotic armF1α/armF1α embryos zygotically mutant for wgl-8. The denticle belts formed in sggM11; armF1α maternal/zygotic double mutant embryos are largely suppressed by AxnS044230/AxnS044230, leaving mainly naked cuticle without much sign of periodic character. The periodic character of the cuticles made by sggM11; arm8 maternal/zygotic double mutant embryos is suppressed by arr2/arr2, with the resulting cuticle tending toward denticle cell fates. Notching of the distal wing margin in nmoc5-1.Scer\UAS; Scer\GAL4sd-SG29.1 flies is completely suppressed by sggM11/+. Loss of notum macrochaetae in nmoc5-1.Scer\UAS; Scer\GAL4ap-md544 flies is suppressed by sggM11/+ and enhanced by AxnA2.Scer\UAS, leading to the loss of all scutellar bristles. Severe blistering of the wing in nmoc5-1.Scer\UAS; Scer\GAL4ap-md544 flies is suppressed by sggM11/+, resulting in almost wild-type wings. | |||
Xenogenetic Interactions
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Statement Reference | |||
Complementation & Rescue Data
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| Rescued by | |||
| Partially rescued by | |||
| Comments | sggmR10 rescues hemizygous males to viable and (poorly) fertile adults. | ||
Stocks
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Notes on Origin
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| Discoverer | |||
Comments
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Strong sgg allele. | |||
Synonyms & Secondary IDs
( 12 ) | |||
| Reported As | |||
| Symbol Synonym | sgg33 sggM11-1 sggm11.1 sggM11 sggMX11 sgg<up>zw3 M11-1</up> zw3/sggm11 zw3M11-1 (Tolwinski and Wieschaus, 2004, Tolwinski et al., 2003, Ahmed et al., 2002, Tolwinski and Wieschaus, 2001, Freeman and Bienz, 2001, Yu et al., 1999, Helms et al., 1999, Kennerdell and Carthew, 1998, Steitz et al., 1998, Pai et al., 1997, Huang and Fischer-Vize, 1996, Yu et al., 1996, Motzny and Holmgren, 1995, Peifer et al., 1994, Siegfried et al., 1994, Peifer et al., 1994, Perrimon and Smouse, 1989) zw3m11-1 zw3M11 (Ainsworth et al., 2000, Nakagoshi et al., 2002, Takaesu et al., 2002, Zeng et al., 2000, Greaves et al., 1999, Yu et al., 1998, Waltzer and Bienz, 1998, Duffy et al., 1998, Cadigan et al., 1998, Park et al., 1998, Cadigan and Nusse, 1996, Park et al., 1996, Manoukian et al., 1995, Wilder and Perrimon, 1995, Takaesu et al., 2005) | ||
| Name Synonym | |||
| Secondary FlyBase IDs | |||
References
( 56 ) | |||
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Recent research papers (0)
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| All research papers listed in FlyBase were published before 2006 | |||
Recent reviews (0)
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| All reviews listed in FlyBase were published before 2006 | |||
Nature of the Allele